Abstract: A damping apparatus includes a damping unit 30 composed of a plurality of damping plates 36 having plasticity, a holding member 31 holding at least one ends of the damping plates 36 in a manner to allow deflection of the damping plates 36 with the damping plates 36 laminated together, and a contact member 33 provided at a position spaced from a holding position of the holding member 31, and attached to an outermost one of the damping plates 36, or extending through and held by the damping plates 36 in such a manner that it can be brought into contact with the outermost one of the damping plates 36 and can be moved in an extending direction thereof. The damping unit 30 is supported by a support mechanism 2 in such a manner that the contact member 33 can be brought into contact with an object W.

Abstract: A damping apparatus includes a damping unit 30 composed of a plurality of damping plates 36 having plasticity, a holding member 31 holding at least one ends of the damping plates 36 in a manner to allow deflection of the damping plates 36 with the damping plates 36 laminated together, and a contact member 33 provided at a position spaced from a holding position of the holding member 31, and attached to an outermost one of the damping plates 36, or extending through and held by the damping plates 36 in such a manner that it can be brought into contact with the outermost one of the damping plates 36 and can be moved in an extending direction thereof. The damping unit 30 is supported by a support mechanism 2 in such a manner that the contact member 33 can be brought into contact with an object W.

Abstract: A chuck is composed of a body (2), gripping jaws (10) provided on the body (2), and feed structures (20) disposed in containing chambers (4) of the body (2), and the feed structure (20) is composed of a cylindrical body (21) having a male screw portion (22) formed thereon, a first receiving body (27) fitted in one end side of the cylindrical body (21), a second receiving body (35) fitted in the other end side of the cylindrical body (21), an eccentric shaft (40) consisting of an base shaft portion (41) and an eccentric portion (42), an external gear (45) having a through hole (46) formed to extend from front to rear through an central portion thereof and having the eccentric portion (42) of the eccentric shaft (40) inserted in the through hole (46), an internal gear (50) having a teeth portion partially meshing with a part of a teeth portion of the external gear (45), a screw body (55) composed of a screw member (56) and a flange member (60), and a coupling body (65) disposed between the first receiving body

Abstract: A chuck is composed of a body (2), gripping jaws (10) provided on the body (2), and feed structures (20) disposed in containing chambers (4) of the body (2), and the feed structure (20) is composed of a cylindrical body (21) having a male screw portion (22) formed thereon, a first receiving body (27) fitted in one end side of the cylindrical body (21), a second receiving body (35) fitted in the other end side of the cylindrical body (21), an eccentric shaft (40) consisting of an base shaft portion (41) and an eccentric portion (42), an external gear (45) having a through hole (46) formed to extend from front to rear through an central portion thereof and having the eccentric portion (42) of the eccentric shaft (40) inserted in the through hole (46), an internal gear (50) having a teeth portion partially meshing with a part of a teeth portion of the external gear (45), a screw body (55) composed of a screw member (56) and a flange member (60), and a coupling body (65) disposed between the first receiving body